8017287: Better resource disposal

Reviewed-by: prr, vadim, skoivu

src/share/classes/sun/java2d/Disposer.java

@@ -155,8 +155,7 @@ public class Disposer implements Runnable {
                 rec = null;
                 clearDeferredRecords();
             } catch (Exception e) {
-                System.out.println("Exception while removing reference: " + e);
-                e.printStackTrace();
+                System.out.println("Exception while removing reference.");
             }
         }
     }
@@ -182,7 +181,6 @@ public class Disposer implements Runnable {
                 rec.dispose();
             } catch (Exception e) {
                 System.out.println("Exception while disposing deferred rec.");
-                e.printStackTrace();
             }
         }
         deferredRecords.clear();
@@ -233,8 +231,7 @@ public class Disposer implements Runnable {
                 }
             }
         } catch (Exception e) {
-            System.out.println("Exception while removing reference: " + e);
-            e.printStackTrace();
+            System.out.println("Exception while removing reference.");
         } finally {
             pollingQueue = false;
         }